Tire-making machine.



P. D. & J. E. THROPP & A. DE LASKL.

HRE MAKING MACHlNE.

I APPLICATION FILED JUNE 29,1912. 1 i'yg gwg, t Patented Apr. 11, 1916.

' 3 SHEETS-SHEET I- P. D. 6; J. E. THROPP & A. DE LASKL TIRE MAKING MACHJNE.

APPLICATION mum JUNE 29, 1912,

Patented Apr. 11, 1916.

3 SHEETS-SHEET 2.

TWIL/ILQLSJGJ whim- P. D. A; J. E. THROPP 6 A, DE LASKI, TIRE MAKING MACHINE. APPLlCATiON FILEDVJUHEZQ, 1912. 1 12 974, Patented Am: 11,- 1916 3 SHEETS-SHEET a.

w ni v, rirvr re n si gs. ll. ll iv wove-s COMEANY, TBEHTQN, new mess n come-series or new rz-zisorr'snn some ssnsozer, or TEENTON, we ALBERT E 1311311, or are THE on LASKI AND censors crscoLnn.

Specification of Letters Ea'tent.

Patented Apr .ezsp'licexticn. filed. June 29, 1912. Serial No. P063753.

To all whom may concern.

Be it known that We, PETER DQT; sore, Joi-m l5. .lmxorea and ALBERT on Lssm,

' on Lnsnr being a resident of VVeeh-ewken,

in the county of Hudson and. State of New Jersey, have invented new end. useful improvements 1n Tue-Making Machines, of

which the following is a specincoltion.

' This invention reletesto tire making mechinery'with the object in view of providing athochmenl; for such machinery Which will enable tires, and periticulmrly tire shoes or cosin 's, to he niennfectured much. more speedily than has been heretofore possible. The apparatus which 1s the subyect matter of tnis invention is particularly adapted for use in connection with the tire machine shown in our connection Serial No. 873%9, filed January i912 WlllCllllllmired into Patent l lo. Llii fiffi issued. Dec. 1, 191i.

A practical embodiment of the invention. is represented in fiche accompanying drewings, in Which- Figure 1 represents e detail side view of a tire making machine such as that shown in our application alcove referred to with" our present invention in pie therein, Fig. 2 recresents a detail front view of the ports shown Fig. l, and 3 represents a similar view nsrtly in section The casing of the is denoted by 1, end the overhanging s snchion secured thereon, by 2, which stone llOll provided with a hollow head 3 fitted to receive cyl indcr i arranged. so he r'ciproceted \Jllllllll the head 3 by escrevv 5 connected by miter 6, 7, 8 and 9 with a rod 10 provided.

at its lower end with shond wheel 11 for manual opereiion thereof,

A core or mandrel 12 is suopcrted by a spider 13' mounted on a sheft jonrnaled horizontally in the casing l, which core 12 is adopted to be driven at varying speeds in both directions by means of bolts 15 and 16 connecting a. source of power, not shown,

I which, in turn, of a oelt'lS, a variable which cone 1%) a belt ins of gearing located.

Within the casing 1 but not shown herein, which gearing is adapted to be thrown into low speed, high speed or neutral by levers 21; While the direction of rotation. of the steady speed cone 1.? is controlled by a lever to the reciprocating cylinder and hence arranged to be moved with the letter toward and away from the core or mandrel 12 This frame 24 is provided in each side with a pair of open journals 25 fitted to receive the spindles 26 'of-the stock rolls 27,

Which are supplied with the Well known.

frictionfehric. or deck 29 used. in the construction o]: the so-celled carcass of the tires. One of the said rolls is provided with the friction fabric of the proper Width for incorporation in the tire under the Well known head cores, and the other stock roll is provided With friction fabric of the proper Width for being placed. in the tire over the bead cores. It will be understood new the fabric Which goes under the head cores and that \vnich goes over the bead cores in a tire of given size not only very in Width between themselves, but that the fabrics for these two positions also var; in Width for different sizes of tires. Below the Said stock rolls 27, 28, and in the frame 2-1. are rotetebly mounted e pair of large guide rolls 80, which rolls are composed of Wood or provided. in some other convenient Way ill The friction fabric or duck is arranged to be ledfrom the stock rolls 27, 28, first around the small guide rolls 36 and thence around the large friction guide rolls 30 to the core or mandrel 12. This course of the fabric is clearly shown in Figs. 2 and 3, i

It will be noted that the fabric is led from the inside of the stock roll 28 and from the outside of the stock roll 27, hence the rotary feeding movement of the two rolls 27 and 28 is in the same direction.

A pair of take-up rolls 3'? are mounted in swinging arms 38 pivoted at 39 in the frame 24, which rolls 37 are adapted to frictionally engage the fabric 29 on the stock rolls 2'2, 28, and be rotated by saidfrictional contact to take up the muslin or other cloth with which the friction fabric is 001m monly associat d on the stock rolls. The arms 38 are provided with adjustable weights 4-0 for varying the frictional engagement of the take-up rolls 37 with the material 29 on the stock rolls 27, 28. The said arms are also provided with loops 41, adapted to engage hooks 42 for holdingthe take up rolls 37 out of engagement with the material 29 on the stock rolls 27, 28, when desired. i

In operation, the friction fabric or duck is placed upon thestock rolls 2-7, 28, with the ends of the strips stuck or spliced together and with the threads of the said fabric at the same angles on both stock rolls. The fabric may then be led from the stool; roll which has the narrower fabric thereon and its free end stuck, in the custonary manner, on the periphery of the core 12, The core is then rotated in the appropriate direction and the said rotation continued until the number of layers or plies of {the fabric have been superimposed upon the said core or mandrel which are desired'to be incorporated in the tire before the placing of the well known beads or bead cores. ihe rotation of thecore 12 is then stopped and the friction fabric from the stock roll severedat the proper point. The plies of fabric thus placed on the core may be formed thereon by the mechanism shown in our pending application already referred to or in any other desired manner; and the bead cores then placed in proper position by mechanism shown in the said application or in any other desired manner; the particular method of forming the fabric about the core or placing the bead. cores forming no part of the present invention. After this stage is reached, the wider fabric is led from the other stock roll and its free end stuck to the fabric already superimposed on the core 12, and the core is then rotated in the reverse direction, this rotation being continued until the proper number of layers of the wider fabrlc have been placed upon the partially formed tire on the I mesmecore. At this juncture, the rotation of the core 12 is stopped and the fabric severed at the proper place; after which it may be formed down over the bead cores by mechanism shown in our said application or in any other desired manner and the construction of the tire completed; the particular manner of forming this fabric down over the bead cores and completing the tire formingno part of our present invention.

It will be understood that the plies of fabric which were laid under the bead core have their threads at the same angles, and that the plies of fabric which were laid over the bead cores also have their threads at the same angles; but that, owing to the fact that the fabric on both stock rolls have their threads at the same angles. and that the direction of rotation of the core 12 was dif ferent when laying the fabric under the bead core from its direction when laying the fabric over the bead cores, the plies which are under the bead core in the tire have their threads at different angles from the plies which are over the bead cores. It will also be seen that by this method of manufactoring tires we are enabled to lay the plies of fabric which form the carcass of the tire very much more rapidly than heretofore, because it has previously been the custom to lay the alternating plies of fabric throughout with their threads different angles. Furthermore, the mechanism which I have shown herein is very well adapted for carrying out this method, and coiperates particularly Well with the tire making machine shown in our aforesaid application Again, the tire made in this manner, with its threads lying at one angle under the bead core and at another angle over the bead core, we have found to be extremely strong and durable.

- It will be understood that various changes may be resorted to in the form, construction and arrangement of the several parts, and in the character of material used and its method of application, without departing from the spirit and scope of our invention;

hence we do not wish to limit ourselves means for rotating the core in one direction for drawing fabric from certain of the rolls and in the reverse direction for drawing fabric from another of the rolls. I

2. Apparatus of the character described comprisinga core upon which the tire may be built, a stanchion, a pair of rolls mounted in the stanchion and adapted to hold friction fabric, means for feeding the said fabric from the rolls to the core, and means for rotating the core in one direction for drawing fabric from one of the rolls and in the reverse direction for drawing fabric from the other roll.

3. Apparatus of the character described comprising a core upon which the tire may be built, a stanchion, a pair of rolls mounted in the stanchion and adapted to hold friction fabric, the threads of the said fabric on both rolls lying at the same angle, means i for feeding the friction fabric from the rolls to the core, and means for rotating the core in one direction for drawing fabric from one roll and 1n the reverse direction for' threads at opposite angles to the threads of the first-named fabric.

4. Apparatus of the character described comprising a core upon which the tire may be built, a pair of stock rolls at the same side of the core adapted to hold friction fabric, the threads of the said fabric on both rolls lying at the same angle, means for feeding the friction fabric from the rolls to the core, and means for rotating the core in one direction'for drawing fabric from one roll and in the reverse direction for drawing fabric from the other roll, whereby the fab ric which is drawn from one roll will lie upon the core with its threads at one angle and the fabric which is drawn from the other roll will lie upon the core with its threads at opposite angles to the threads of the first-named fabric.-

In testimony, that We claim the foregoing as our invention, We have signed our names in presence of two Witnesses, this twentyseventh day of June, 1912.

PETER n. 'rnnorr. JOHN E. rnnonr. ALBERT DE LAsKr.

lVitnesses:

CLIFFORD W. Len, HARRY P. MnssLoR. 

